WO2015173942A1 - Dispositif d'affichage à balayage - Google Patents

Dispositif d'affichage à balayage Download PDF

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Publication number
WO2015173942A1
WO2015173942A1 PCT/JP2014/063023 JP2014063023W WO2015173942A1 WO 2015173942 A1 WO2015173942 A1 WO 2015173942A1 JP 2014063023 W JP2014063023 W JP 2014063023W WO 2015173942 A1 WO2015173942 A1 WO 2015173942A1
Authority
WO
WIPO (PCT)
Prior art keywords
scanning
display device
noise
pixel
unit
Prior art date
Application number
PCT/JP2014/063023
Other languages
English (en)
Japanese (ja)
Inventor
智生 小堀
瀬尾　欣穂
佑哉 大木
大内　敏
Original Assignee
日立マクセル株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 日立マクセル株式会社 filed Critical 日立マクセル株式会社
Priority to PCT/JP2014/063023 priority Critical patent/WO2015173942A1/fr
Priority to CN201480078922.2A priority patent/CN106463088B/zh
Priority to US15/309,896 priority patent/US10089911B2/en
Priority to JP2016519063A priority patent/JP6359647B2/ja
Publication of WO2015173942A1 publication Critical patent/WO2015173942A1/fr

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Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/02—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes by tracing or scanning a light beam on a screen
    • G09G3/025—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes by tracing or scanning a light beam on a screen with scanning or deflecting the beams in two directions or dimensions
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
    • G02B26/08—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
    • G02B26/10—Scanning systems
    • G02B26/101—Scanning systems with both horizontal and vertical deflecting means, e.g. raster or XY scanners
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B26/00—Optical devices or arrangements for the control of light using movable or deformable optical elements
    • G02B26/08—Optical devices or arrangements for the control of light using movable or deformable optical elements for controlling the direction of light
    • G02B26/10—Scanning systems
    • G02B26/105—Scanning systems with one or more pivoting mirrors or galvano-mirrors
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/02—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes by tracing or scanning a light beam on a screen
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/2007—Display of intermediate tones
    • G09G3/2044—Display of intermediate tones using dithering
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/12—Picture reproducers
    • H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
    • H04N9/3129—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM] scanning a light beam on the display screen
    • H04N9/3135—Driving therefor
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/12—Picture reproducers
    • H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
    • H04N9/3141—Constructional details thereof
    • H04N9/315—Modulator illumination systems
    • H04N9/3161—Modulator illumination systems using laser light sources
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/12—Picture reproducers
    • H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
    • H04N9/3179—Video signal processing therefor
    • H04N9/3182—Colour adjustment, e.g. white balance, shading or gamut
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/06—Adjustment of display parameters
    • G09G2320/0626—Adjustment of display parameters for control of overall brightness
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/3406—Control of illumination source
    • G09G3/3413—Details of control of colour illumination sources
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/3433—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using light modulating elements actuated by an electric field and being other than liquid crystal devices and electrochromic devices
    • G09G3/346—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using light modulating elements actuated by an electric field and being other than liquid crystal devices and electrochromic devices based on modulation of the reflection angle, e.g. micromirrors

Definitions

  • the present invention relates to a scanning display device.
  • Patent Document 1 discloses resonance (horizontal direction) and non-resonance (vertical direction) by a MEMS (Micro Electro Mechanical System) element.
  • MEMS Micro Electro Mechanical System
  • the resonance characteristics and oscillation angle of a micromirror that oscillates at resonance changes depending on the usage conditions. Therefore, the resonance state and oscillation angle are maintained by PLL (Phase Locked Loop) control, but the resonance cycle varies. For this reason, even when the resonance period constantly fluctuates, it is possible to realize video display that maintains the angle of view and resolution.
  • PLL Phase Locked Loop
  • a light source control drive unit that modulates the laser light by driving the light source, and the laser control unit includes a dither noise generation unit that generates noise and the running light source.
  • a normalizing unit for adding the noise from the dither noise generating unit to the horizontal scanning position of the oscillating mirror determined by the position determining unit and normalizing the horizontal scanning position to which the noise is added
  • FIG. 1 is a block diagram of a scanning display device according to a first embodiment of the present invention.
  • FIG. 3 is a diagram illustrating an example of a pixel address LUT according to the first embodiment of the present invention. The figure which shows the pixel omission concerning 1st Example of this invention.
  • FIG. 3 is a diagram illustrating pixel extension according to the first embodiment of the present invention.
  • the timing diagram which concerns on 1st Example of this invention.
  • the block diagram of the scanning-type display apparatus which concerns on 2nd Example of this invention.
  • FIG. 6 is a conceptual diagram of pixel interpolation and thinning according to a second embodiment of the present invention.
  • FIG. 4 is a position configuration diagram of the scanning display device according to the example.
  • the spot diameter is a general definition where the beam radiation intensity is 1 / e 2 (13.5%) of the peak value or the value on the optical axis. Is a size of ⁇ 1 mm or less, and the image to be displayed is a size satisfying a desired resolution.
  • the mirror control unit 5 generates amplitude control signals H_AMP and V_AMP from the control information and the swing state signal, and the H-axis SIN waveform Hwv and the V-axis sawtooth waveform Vwv have desired swing angles ⁇ ⁇ h ⁇ Multipliers 8 and 9 multiply the amplitude control signals H_AMP and V_AMP by the data of the H-axis SIN waveform Hwv and V-axis sawtooth waveform Vwv read from the waveform LUT 7 so as to be ⁇ ⁇ v.
  • the output signals from the multipliers 8 and 9 (that is, the data of the H-axis SIN waveform Hwv and the V-axis sawtooth waveform Vwv whose amplitudes are controlled) are input to the mirror driving unit 10.
  • a drive signal Hdrive / Vdrive suitable for the mirrors 11 and 12 is generated from the output signals from 8 and 9 and applied to the mirrors 11 and 12.
  • the mirrors 11 and 12 have a function of detecting the amplitude of each mirror and outputting detection signals Hsensor / Vsensor.
  • the scanning position determination unit 13 obtains the detection signals Hsensor / Vsensor output from the mirrors 11 and 12, generates the swing state signal Hposition / Vposition indicating the respective phase and amplitude value, and uses this as a feedback signal. As shown in FIG.
  • the image data video read from the image RAM 14 is subjected to image processing such as pixel interpolation and brightness correction in the image processing unit 15 with reference to the synchronization signal HLDsync / VLDsync.
  • the image data LDvideo subjected to image processing by the image processing unit 15 is supplied to the light source control drive unit 16, and the light source control drive unit 16 generates a drive signal LD Drive suitable for the light source 17 based on the image data LDvideo.
  • the light source 17 is driven.
  • the light source 17 generates laser light modulated in units of pixels in accordance with the image data.
  • the light source 17 includes three light sources that respectively emit R light, G light, and B light, each light source is driven by image data for R, G, and B.
  • the laser control unit 6 can display the same number of pixels.
  • the projection display device in order to improve the quality of the projected image, for example, to increase the brightness and the resolution, the projection display device has a frequency corresponding to the resonance frequency, the resolution, and the non-light emission period (return line period). It is preferable to drive the light source 17 with a laser modulation clock.
  • the laser modulation clock has a fixed frequency, for example, due to insufficient resolution of display pixels (detailed later), pixel alignment may be non-uniform due to calculation errors depending on the scanning position in the horizontal scanning direction. Occurs. When this pixel omission occurs, the pixel width of the projected image becomes non-uniform, and pixel omission, luminance unevenness, etc. occur.
  • FIG. 2 is a diagram illustrating a configuration example of the laser control unit 6 according to the first embodiment
  • FIG. 3 is an example of a pixel address LUT (Look UP Table) according to the first embodiment
  • FIG. 5 is a first embodiment.
  • FIG. 6 is a timing diagram of a noise signal according to the first embodiment.
  • the laser control unit 6 includes a scanning address generation unit 24, a dither noise generation unit 21, a normalization unit 22, and a pixel address table (LUT) 23.
  • the normalization unit 22 includes a 1 / N LUT 25, an adder 26, and a multiplier 27.
  • the pixel address LUT 23 includes an adder 28 and a pixel address generation LUT 29.
  • the normalized noise NN may be two or more of 0,8.
  • the above-mentioned time address tadd (0 to 8191) is discrete because the laser modulation clock address tn (0 to 1665) is discretized approximately 4.9 times.
  • the desired reference noise RN of the dither noise generation unit 21 is set to -2 to 2 (integer), and the pixel address generation LUT 29 is added to the time address tadd by the adder 28 in the configuration of the pixel address LUT unit 23 of FIG.
  • the pixel address add is generated so as to give a change within ⁇ 0.5 pixel.
  • An example of assigning 0,1,2, -1, -2 to mode_a000 to 110 is shown by reference noise in FIG.
  • the pixel numbers given in the figure are concepts.
  • the value of the reference noise RN is determined by the normalization accuracy to be used, and any value can be used as long as the pixel address add is within ⁇ 0.5 pixels.
  • the mode switching between the normalization noise NN and the reference noise RN and the generation order of the modes may be any timing as long as the display quality of the projected video is improved.
  • An example in which the mode switching is performed in units of H-axis or V-axis synchronization signals HLDsync and VLDsync is shown in the timing diagram of FIG.
  • a flicker (filler) phenomenon in a part of the projected image there may be a case where a flicker (filler) phenomenon in a part of the projected image, a nonuniform pixel size, and uneven luminance are not improved.
  • the quality of improvement may change as the resonance frequency varies, so it is possible to set the mode switching conditions that provide the optimal timing and optimal amount at each resonance frequency. good.
  • the pixel address distribution can be diffused and equalized by the same process as described above, so that the pixel size can be made uniform.
  • FIG. 7 is a block diagram of a scanning projection display apparatus according to the second embodiment, in which the image processing unit 15 performs pixel thinning, interpolation, and smoothing processing between pixels in the horizontal direction compared to the first embodiment. A function is added. This will be described in detail below with reference to the conceptual diagrams of FIGS.
  • the present embodiment is characterized by using the above-described center-of-gravity information when interpolating a video signal. Interpolation methods such as smoothing and enhancement processing of a video signal are referred to in this embodiment. There is no need to use known techniques. Thereby, the pixel is displayed with the video signal corresponding to the shift of the pixel centroid.
  • the pixel is displayed with a video signal corresponding to the shift of the pixel centroid.
  • the pixel address LUT 23 is shown in the case of four times the display resolution (2 bit extension), but it is desirable to hold it at least twice the accuracy, and of course, the accuracy may be four times or more the display resolution. .
  • the laser emission period for displaying one pixel can be made the same regardless of the scanning position of the mirror 11, an image with uniform in-plane luminance can be obtained. Furthermore, the addition of the normalization noise NN prevents the deterioration of the resolution at the center in the plane, but the pixel blur can be improved and the display quality is not deteriorated compared to the first embodiment where the pixel blur occurs. .
  • FIG. 9 is a block diagram of a display device according to the third embodiment.
  • the image RAM stores and reproduces image data of three primary colors of red (R) / green (G) / blue (B), and the laser light source 17
  • the light source includes three primary color light sources of red (R) / green (G) / blue (B), and a condensing lens 18 corresponding to each.
  • color video display by R / G / B becomes possible.
  • the pixels can be made uniform because they can be equalized by the same processing as described above.
  • the means have been limited.
  • the present invention is not limited to this, and the configuration and driving method of the mirror, the computing method of the computing unit, or each LUT may be determined according to the device to be applied and the application.

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Computer Hardware Design (AREA)
  • Theoretical Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Mechanical Optical Scanning Systems (AREA)

Abstract

La présente invention a pour objet de définir un dispositif d'affichage à balayage par laser capable de réaliser un affichage par projection à haute résolution tout en s'assurant que la luminance et la taille des pixels sont uniformes pour maintenir la qualité de l'affichage par projection. Le dispositif d'affichage à balayage est configuré pour appliquer du bruit provenant d'un générateur (21) de bruit de tremblement à une position de balayage horizontal sur un miroir oscillant (11, 12) déterminée par une unité (13) de détermination de position de balayage; normaliser la position de balayage horizontal à laquelle a été appliqué le bruit à l'aide d'une unité (22) de normalisation; acquérir une adresse de pixel correspondant à la position normalisée de balayage horizontal en se référant à une table (23) d'adresses de pixels; lire des données de pixel correspondant à l'adresse de pixel à partir d'une mémoire (14) d'image; et moduler la lumière laser en pilotant une source lumineuse (17) servant à émettre la lumière laser.
PCT/JP2014/063023 2014-05-16 2014-05-16 Dispositif d'affichage à balayage WO2015173942A1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
PCT/JP2014/063023 WO2015173942A1 (fr) 2014-05-16 2014-05-16 Dispositif d'affichage à balayage
CN201480078922.2A CN106463088B (zh) 2014-05-16 2014-05-16 扫描型显示装置
US15/309,896 US10089911B2 (en) 2014-05-16 2014-05-16 Scanning display device
JP2016519063A JP6359647B2 (ja) 2014-05-16 2014-05-16 走査型表示装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2014/063023 WO2015173942A1 (fr) 2014-05-16 2014-05-16 Dispositif d'affichage à balayage

Publications (1)

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WO2015173942A1 true WO2015173942A1 (fr) 2015-11-19

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US (1) US10089911B2 (fr)
JP (1) JP6359647B2 (fr)
CN (1) CN106463088B (fr)
WO (1) WO2015173942A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115118939A (zh) * 2021-03-17 2022-09-27 成都理想境界科技有限公司 一种图像亮度均匀化方法、计算机可读存储介质、电子设备及激光投影图像处理装置

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6544507B2 (ja) * 2015-02-09 2019-07-17 日本精機株式会社 ヘッドアップディスプレイ装置
US10379494B2 (en) * 2016-08-10 2019-08-13 Disney Enterprises, Inc. Scanned coarse integral holographic display having holographic lenslets displayed by spatial light modulator
CN110557518B (zh) * 2018-05-31 2021-06-01 成都理想境界科技有限公司 一种激光扫描成像设备
CN109584761A (zh) * 2018-10-31 2019-04-05 歌尔股份有限公司 一种信号调整方法及激光扫描投影设备
CN109360229B (zh) * 2018-10-31 2020-11-17 歌尔光学科技有限公司 激光投射图像处理方法、装置和设备
CN109752839B (zh) * 2018-12-18 2021-06-08 华为技术有限公司 处理器、显示控制装置、系统、图像处理方法及装置
JP7400480B2 (ja) * 2020-01-14 2023-12-19 株式会社リコー 画像読取装置および画像読取方法

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006343397A (ja) * 2005-06-07 2006-12-21 Casio Comput Co Ltd 画像投影装置
JP2007086242A (ja) * 2005-09-21 2007-04-05 Fujifilm Corp レーザ・プロジェクション装置およびその制御方法
JP2011059456A (ja) * 2009-09-11 2011-03-24 Funai Electric Co Ltd 光走査装置
JP2012124880A (ja) * 2010-11-19 2012-06-28 Ricoh Co Ltd 画像投影装置、メモリ制御装置、レーザープロジェクタ、メモリアクセス方法
WO2013047656A1 (fr) * 2011-09-27 2013-04-04 日本電気株式会社 Appareil de projection d'image et procédé de correction pour déviation d'axe optique

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5276943B2 (ja) * 2008-09-29 2013-08-28 株式会社日立製作所 表示装置
GB2477384B (en) * 2011-01-04 2011-12-21 Prysm Inc Fine brightness control in panels or screens with pixels
US8830214B2 (en) * 2011-01-06 2014-09-09 Prysm, Inc. Dithered power matching of laser light sources in a display device
US8840255B2 (en) * 2012-10-12 2014-09-23 Microvision, Inc. Scanned beam intensity modulation using amplitude and drive duty cycle

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006343397A (ja) * 2005-06-07 2006-12-21 Casio Comput Co Ltd 画像投影装置
JP2007086242A (ja) * 2005-09-21 2007-04-05 Fujifilm Corp レーザ・プロジェクション装置およびその制御方法
JP2011059456A (ja) * 2009-09-11 2011-03-24 Funai Electric Co Ltd 光走査装置
JP2012124880A (ja) * 2010-11-19 2012-06-28 Ricoh Co Ltd 画像投影装置、メモリ制御装置、レーザープロジェクタ、メモリアクセス方法
WO2013047656A1 (fr) * 2011-09-27 2013-04-04 日本電気株式会社 Appareil de projection d'image et procédé de correction pour déviation d'axe optique

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115118939A (zh) * 2021-03-17 2022-09-27 成都理想境界科技有限公司 一种图像亮度均匀化方法、计算机可读存储介质、电子设备及激光投影图像处理装置
CN115118939B (zh) * 2021-03-17 2024-02-02 成都理想境界科技有限公司 一种图像亮度均匀化方法、计算机可读存储介质、电子设备及激光投影图像处理装置

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Publication number Publication date
CN106463088B (zh) 2019-09-03
CN106463088A (zh) 2017-02-22
US20170140689A1 (en) 2017-05-18
US10089911B2 (en) 2018-10-02
JPWO2015173942A1 (ja) 2017-04-20
JP6359647B2 (ja) 2018-07-18

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